Ouch. Mine sometimes get sore from all the kicking. I kick hard lol. Makes me worry about the cats. Mine is caused by peripheral neuropathy. And or meds. Doesn't matter much because there's nothing to be done. I'm guessing the restoril didn't help yours?
Do you ever get the prickly ticklish feelings? That happens just before the kicking and jerking begins. And the wiggly toes? Altogether it makes sleep very difficult. As does the anxiety.
When was the last time you slept?

I really think that when you fully recover from the infections you'll feel much better.
I was going through a pretty good period in my life once when I got the flu. Never had the flu before. I laughed about those flu med commercials...the remedies for the minor aches and discomfort of the flu.
LOL. I suspect a lot of people have never actually had the flu. I'd never been that sick before. I got a bacterial infection to boot. Kicked my *** and I had been in excellent shape. Missed two weeks of work.
The end result was bringing on all the old symptoms of depression and severe anxiety. Once I recovered from the flu and infection most of that went away.

I hope that's how it works for you. I recently went through a withdrawal thing. Probably not as bad as yours but bad enough that I can relate somewhat. Take care.